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Re: [PATCH] Add VPN client ike.


From: Alex Kost
Subject: Re: [PATCH] Add VPN client ike.
Date: Tue, 04 Aug 2015 13:26:56 +0300
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Ricardo Wurmus (2015-08-03 16:41 +0300) wrote:

> +(define-public ike
> +  (package
> +    (name "ike")
> +    (version "2.2.1")
> +    (source (origin
> +              (method url-fetch)
> +              (uri (string-append
> +                    "https://www.shrew.net/download/ike/ike-";
> +                    version "-release.tbz2"))
> +              (sha256
> +               (base32
> +                "0mvvmfc7ldgq48x75khr98d52jvg24zzlyinmzsihy2ly4g2ziq5"))))
> +    (build-system cmake-build-system)
> +    (arguments
> +     `(#:tests? #f ; no "check" target
> +       #:out-of-source? #f
> +       #:configure-flags (list (string-append "-DSBINDIR="
> +                                              (assoc-ref %outputs "out")
> +                                              "/sbin")
> +                               (string-append "-DBINDIR="
> +                                              (assoc-ref %outputs "out")
> +                                              "/bin")
> +                               (string-append "-DETCDIR="
> +                                              (assoc-ref %outputs "out")
> +                                              "/etc")
> +                               (string-append "-DLIBDIR="
> +                                              (assoc-ref %outputs "out")
> +                                              "/lib")
> +                               (string-append "-DMANDIR="
> +                                              (assoc-ref %outputs "out")
> +                                              "/man/man1/")
> +                               "-DNATT=YES")))

It seems redundant to reevaluate (assoc-ref %outputs "out") every time.
What about wrap it into 'let'?, or maybe just to use following form:

(list (string-append "-DSBINDIR=" %output "/sbin")
      (string-append "-DBINDIR="  %output "/bin")
      (string-append "-DETCDIR="  %output "/etc")
      (string-append "-DLIBDIR="  %output "/lib")
      (string-append "-DMANDIR="  %output "/man/man1/")
      "-DNATT=YES")

-- 
Alex



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